crypto: crc32c-vpmsum - Convert to CPU feature based module autoloading
authorAnton Blanchard <anton@samba.org>
Thu, 4 Aug 2016 06:38:15 +0000 (16:38 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Tue, 9 Aug 2016 04:50:17 +0000 (14:50 +1000)
This patch utilises the GENERIC_CPU_AUTOPROBE infrastructure
to automatically load the crc32c-vpmsum module if the CPU supports
it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/crypto/crc32c-vpmsum_glue.c

index bfe3d37..9fa046d 100644 (file)
@@ -4,6 +4,7 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <linux/cpufeature.h>
 #include <asm/switch_to.h>
 
 #define CHKSUM_BLOCK_SIZE      1
@@ -157,7 +158,7 @@ static void __exit crc32c_vpmsum_mod_fini(void)
        crypto_unregister_shash(&alg);
 }
 
-module_init(crc32c_vpmsum_mod_init);
+module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, crc32c_vpmsum_mod_init);
 module_exit(crc32c_vpmsum_mod_fini);
 
 MODULE_AUTHOR("Anton Blanchard <anton@samba.org>");